Examples with LengthFieldPrepender io.netty.handler.codec.LengthFieldPrepender used on opensource projects

Example 21 with LengthFieldPrepender

use of io.netty.handler.codec.LengthFieldPrepender in project Hydra by DataSecs.

the class HydraChannelInitializer method initChannel.

@Override
protected void initChannel(SocketChannel channel) {
    ChannelPipeline pipeline = channel.pipeline();
    // In
    pipeline.addLast(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4));
    pipeline.addLast(new PacketDecoder(protocol));
    // Out
    pipeline.addLast(new LengthFieldPrepender(4));
    pipeline.addLast(new PacketEncoder(protocol));
    HydraSession session = new HydraSession(channel, protocol);
    pipeline.addLast(session);
    // Add sessions to protocol, to keep track of them
    if (isServer) {
        protocol.addSession(session);
    } else {
        protocol.setClientSession(session);
    }
    // Inform SessionListener about new session
    protocol.callSessionListener(true, session);
}

Example 22 with LengthFieldPrepender

use of io.netty.handler.codec.LengthFieldPrepender in project camel by apache.

the class MultipleCodecsTest method createRegistry.

@Override
protected JndiRegistry createRegistry() throws Exception {
    JndiRegistry registry = super.createRegistry();
    // START SNIPPET: registry-beans
    ChannelHandlerFactory lengthDecoder = ChannelHandlerFactories.newLengthFieldBasedFrameDecoder(1048576, 0, 4, 0, 4);
    StringDecoder stringDecoder = new StringDecoder();
    registry.bind("length-decoder", lengthDecoder);
    registry.bind("string-decoder", stringDecoder);
    LengthFieldPrepender lengthEncoder = new LengthFieldPrepender(4);
    StringEncoder stringEncoder = new StringEncoder();
    registry.bind("length-encoder", lengthEncoder);
    registry.bind("string-encoder", stringEncoder);
    List<ChannelHandler> decoders = new ArrayList<ChannelHandler>();
    decoders.add(lengthDecoder);
    decoders.add(stringDecoder);
    List<ChannelHandler> encoders = new ArrayList<ChannelHandler>();
    encoders.add(lengthEncoder);
    encoders.add(stringEncoder);
    registry.bind("encoders", encoders);
    registry.bind("decoders", decoders);
    // END SNIPPET: registry-beans
    return registry;
}

Example 23 with LengthFieldPrepender

use of io.netty.handler.codec.LengthFieldPrepender in project herddb by diennea.

the class NettyChannelAcceptor method start.

public void start() throws Exception {
    if (ssl) {
        if (sslCertFile == null) {
            LOGGER.log(Level.SEVERE, "start SSL with self-signed auto-generated certificate");
            if (sslCiphers != null) {
                LOGGER.log(Level.SEVERE, "required sslCiphers " + sslCiphers);
            }
            SelfSignedCertificate ssc = new SelfSignedCertificate();
            try {
                sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).ciphers(sslCiphers).build();
            } finally {
                ssc.delete();
            }
        } else {
            LOGGER.log(Level.SEVERE, "start SSL with certificate " + sslCertFile.getAbsolutePath() + " chain file " + sslCertChainFile.getAbsolutePath());
            if (sslCiphers != null) {
                LOGGER.log(Level.SEVERE, "required sslCiphers " + sslCiphers);
            }
            sslCtx = SslContextBuilder.forServer(sslCertChainFile, sslCertFile, sslCertPassword).ciphers(sslCiphers).build();
        }
    }
    if (callbackThreads == 0) {
        callbackExecutor = Executors.newCachedThreadPool();
    } else {
        callbackExecutor = Executors.newFixedThreadPool(callbackThreads, new ThreadFactory() {

            private final AtomicLong count = new AtomicLong();

            @Override
            public Thread newThread(Runnable r) {
                return new Thread(r, "herddb-callbacks-" + count.incrementAndGet());
            }
        });
    }
    InetSocketAddress address = new InetSocketAddress(host, port);
    LOGGER.log(Level.SEVERE, "Starting HerdDB network server at {0}:{1}", new Object[] { host, port + "" });
    ChannelInitializer<io.netty.channel.Channel> channelInitialized = new ChannelInitializer<io.netty.channel.Channel>() {

        @Override
        public void initChannel(io.netty.channel.Channel ch) throws Exception {
            NettyChannel session = new NettyChannel("unnamed", ch, callbackExecutor);
            if (acceptor != null) {
                acceptor.createConnection(session);
            }
            // Add SSL handler first to encrypt and decrypt everything.
            if (ssl) {
                ch.pipeline().addLast(sslCtx.newHandler(ch.alloc()));
            }
            ch.pipeline().addLast("lengthprepender", new LengthFieldPrepender(4));
            ch.pipeline().addLast("lengthbaseddecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
            // 
            ch.pipeline().addLast("messageencoder", new DataMessageEncoder());
            ch.pipeline().addLast("messagedecoder", new DataMessageDecoder());
            ch.pipeline().addLast(new InboundMessageHandler(session));
        }
    };
    if (enableRealNetwork) {
        if (NetworkUtils.isEnableEpoolNative()) {
            bossGroup = new EpollEventLoopGroup(workerThreads);
            workerGroup = new EpollEventLoopGroup(workerThreads);
            LOGGER.log(Level.INFO, "Using netty-native-epoll network type");
        } else {
            bossGroup = new NioEventLoopGroup(workerThreads);
            workerGroup = new NioEventLoopGroup(workerThreads);
            LOGGER.log(Level.INFO, "Using nio network type");
        }
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NetworkUtils.isEnableEpoolNative() ? EpollServerSocketChannel.class : NioServerSocketChannel.class).childHandler(channelInitialized).option(ChannelOption.SO_BACKLOG, 128);
        ChannelFuture f = b.bind(address).sync();
        this.channel = f.channel();
    }
    if (enableJVMNetwork) {
        localBossGroup = new DefaultEventLoopGroup(workerThreads);
        localWorkerGroup = new DefaultEventLoopGroup(workerThreads);
        ServerBootstrap b_local = new ServerBootstrap();
        b_local.group(localBossGroup, localWorkerGroup).channel(LocalServerChannel.class).childHandler(channelInitialized);
        String hostAddress = NetworkUtils.getAddress(address);
        LocalServerRegistry.registerLocalServer(hostAddress, port, ssl);
        ChannelFuture local_f = b_local.bind(new LocalAddress(hostAddress + ":" + port + ":" + ssl)).sync();
        this.local_channel = local_f.channel();
    }
}

Example 24 with LengthFieldPrepender

use of io.netty.handler.codec.LengthFieldPrepender in project angel by Tencent.

the class PSClient method init.

/**
 * Init
 */
public void init() {
    bootstrap = new Bootstrap();
    Configuration conf = context.getConf();
    int workerNum = conf.getInt(AngelConf.ANGEL_PS_HA_SYNC_WORKER_NUM, AngelConf.DEFAULT_ANGEL_PS_HA_SYNC_WORKER_NUM);
    channelManager = new ChannelManager(bootstrap, workerNum);
    int sendBuffSize = conf.getInt(AngelConf.ANGEL_PS_HA_SYNC_SEND_BUFFER_SIZE, AngelConf.DEFAULT_ANGEL_PS_HA_SYNC_SEND_BUFFER_SIZE);
    final int maxMessageSize = conf.getInt(AngelConf.ANGEL_NETTY_MATRIXTRANSFER_MAX_MESSAGE_SIZE, AngelConf.DEFAULT_ANGEL_NETTY_MATRIXTRANSFER_MAX_MESSAGE_SIZE);
    // TODO: use Epoll for linux future
    /*Class channelClass = null;
    String os = System.getProperty("os.name");
    if(os.toLowerCase().startsWith("win")) {
      LOG.info("os is windows, we use NioEventLoopGroup");
      channelClass = NioSocketChannel.class;
      eventGroup = new NioEventLoopGroup(nettyWorkerNum);
      ((NioEventLoopGroup)eventGroup).setIoRatio(70);
    } else if(os.toLowerCase().startsWith("linux")) {

    }
    */
    eventGroup = new NioEventLoopGroup(workerNum);
    ((NioEventLoopGroup) eventGroup).setIoRatio(70);
    bootstrap.group(eventGroup).channel(NioSocketChannel.class).option(ChannelOption.SO_SNDBUF, sendBuffSize).handler(new ChannelInitializer<SocketChannel>() {

        @Override
        protected void initChannel(SocketChannel ch) throws Exception {
            ChannelPipeline pipeLine = ch.pipeline();
            pipeLine.addLast(new LengthFieldBasedFrameDecoder(maxMessageSize, 0, 4, 0, 4));
            pipeLine.addLast(new LengthFieldPrepender(4));
            pipeLine.addLast(new PSClientHandler());
        }
    });
}

Example 25 with LengthFieldPrepender

use of io.netty.handler.codec.LengthFieldPrepender in project tutorials-java by Artister.

the class NettyClient method run.

public void run() {
    EventLoopGroup group = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group);
        b.channel(NioSocketChannel.class).option(ChannelOption.TCP_NODELAY, true);
        b.handler(new ChannelInitializer<SocketChannel>() {

            @Override
            protected void initChannel(SocketChannel ch) throws Exception {
                ChannelPipeline pipeline = ch.pipeline();
                pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4));
                pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
                pipeline.addLast("decoder", new StringDecoder(CharsetUtil.UTF_8));
                pipeline.addLast("encoder", new StringEncoder(CharsetUtil.UTF_8));
                pipeline.addLast("handler", new HelloClient());
            }
        });
        for (int i = 0; i < 10; i++) {
            ChannelFuture f = b.connect("127.0.0.1", 5656).sync();
            f.channel().writeAndFlush("hello Service!" + Thread.currentThread().getName() + ":--->:" + i);
            f.channel().closeFuture().sync();
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        group.shutdownGracefully();
    }
}